Seems like a really good option to protect frames now that "frameprotect" isn't being maintained.

There could be some improvements:
I would love to see a message when you place frames letting users know they are protected.
Frames are not protected from being broken by falling blocks or pistons.

Id definitely rate 5 stars if these items were fixed/added

Seems to have an issue with natural spawning items frames in the end with elytras in it. since it protects those too. and player cant access them. Itemframe protect can also be bypassed by breaking the block behind the items frame, making it pop off. Two major issues atm. I will change my rating once those issues have been addressed. otherwise its a great plugin that i enjoy using :)

Working nicely in Paper 1.15 (latest) with java 11
the perfect plugin for basic ItemFrame Protection with no work needed and no loss of performance at all, Recommended.

good, better if you support fo custom message.
It's simple and works very well.

RPG server will need this.